linux-kernel - Re: [RESEND PATCH v2 5/9] mfd: rtsx: update phy register

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Message-ID: <20150216140720.GK14545@x1>
Date:	Mon, 16 Feb 2015 14:07:20 +0000
From:	Lee Jones <lee.jones@...aro.org>
To:	micky_ching@...lsil.com.cn
Cc:	sameo@...ux.intel.com, devel@...uxdriverproject.org,
	linux-kernel@...r.kernel.org, gregkh@...uxfoundation.org,
	rogerable@...ltek.com, wei_wang@...lsil.com.cn
Subject: Re: [RESEND PATCH v2 5/9] mfd: rtsx: update phy register

On Thu, 22 Jan 2015, micky_ching@...lsil.com.cn wrote:

> From: Micky Ching <micky_ching@...lsil.com.cn>
> 
> update phy register value and using direct value instead of macros.
> It is much easier to debug using constant value than a lot of macros.
> We usually need compare the value directly to check the configure.

This is no longer an adequate description of the patch.

> Signed-off-by: Micky Ching <micky_ching@...lsil.com.cn>
> ---
>  drivers/mfd/rts5249.c        |  55 ++++++++++++----------
>  include/linux/mfd/rtsx_pci.h | 109 ++++++++++++++++++++++---------------------
>  2 files changed, 85 insertions(+), 79 deletions(-)
> 
> diff --git a/drivers/mfd/rts5249.c b/drivers/mfd/rts5249.c
> index 2fe2854..d8072f6 100644
> --- a/drivers/mfd/rts5249.c
> +++ b/drivers/mfd/rts5249.c
> @@ -132,57 +132,62 @@ static int rts5249_optimize_phy(struct rtsx_pcr *pcr)
>  	if (err < 0)
>  		return err;
>  
> -	err = rtsx_pci_write_phy_register(pcr, PHY_REG_REV,
> -			PHY_REG_REV_RESV | PHY_REG_REV_RXIDLE_LATCHED |
> -			PHY_REG_REV_P1_EN | PHY_REG_REV_RXIDLE_EN |
> -			PHY_REG_REV_RX_PWST | PHY_REG_REV_CLKREQ_DLY_TIMER_1_0 |
> -			PHY_REG_REV_STOP_CLKRD | PHY_REG_REV_STOP_CLKWR);
> +	err = rtsx_pci_write_phy_register(pcr, PHY_REV,
> +		PHY_REV_RESV | PHY_REV_RXIDLE_LATCHED |
> +		PHY_REV_P1_EN | PHY_REV_RXIDLE_EN |
> +		PHY_REV_CLKREQ_TX_EN | PHY_REV_RX_PWST |
> +		PHY_REV_CLKREQ_DT_1_0 | PHY_REV_STOP_CLKRD |
> +		PHY_REV_STOP_CLKWR);

The tabbing changes make it difficult to see what you're _really_
doing.  If you think the tabs are important (I think they were better
before personally), then send them as a separate patch.

>  	if (err < 0)
>  		return err;
>  
>  	msleep(1);
>  
>  	err = rtsx_pci_write_phy_register(pcr, PHY_BPCR,
> -			PHY_BPCR_IBRXSEL | PHY_BPCR_IBTXSEL |
> -			PHY_BPCR_IB_FILTER | PHY_BPCR_CMIRROR_EN);
> +		PHY_BPCR_IBRXSEL | PHY_BPCR_IBTXSEL |
> +		PHY_BPCR_IB_FILTER | PHY_BPCR_CMIRROR_EN);

More nonsense?

>  	if (err < 0)
>  		return err;
> +
>  	err = rtsx_pci_write_phy_register(pcr, PHY_PCR,
> -			PHY_PCR_FORCE_CODE | PHY_PCR_OOBS_CALI_50 |
> -			PHY_PCR_OOBS_VCM_08 | PHY_PCR_OOBS_SEN_90 |
> -			PHY_PCR_RSSI_EN);
> +		PHY_PCR_FORCE_CODE | PHY_PCR_OOBS_CALI_50 |
> +		PHY_PCR_OOBS_VCM_08 | PHY_PCR_OOBS_SEN_90 |
> +		PHY_PCR_RSSI_EN | PHY_PCR_RX10K);

Etc.

I'm going to stop here.  Please resubmit this patch properly.

[...]

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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